Question

The equation of a circle is ​ (x−11)2+(y−9)2=225 ​ .

What is the center of the circle?

Answer 1

The center of the circle is (11,9)

Answer 2

(11,9)

Explanation:

If a circle is given by its equation
`(x-a)^2+(y-b)^2=r^2,` then coordinates of the center are
`(a,b)` and radius is r.

In your case, for the circle with equation
`(x-11)^2+(y-9)^2=225,` you can state that coordinates of the center are (11,9) and radius is 15.